Spraying apparatus with speed indicating assembly

Abstract

A movable marking apparatus for marking a supporting surface includes a housing member, wheels rotatably mounted to the housing for engaging the supporting surface and rolling on it, and a handle assembly for controlling the apparatus and actuating the nozzle of a spray can. The apparatus also includes a speed indicating assembly rotatably mounted on the apparatus and connected to a wheel of the apparatus. This assembly has at least one set of indicia disposed in spaced intervals on the assembly. This indicia appears as a solid line when a user moves the apparatus at a predetermined speed.

What is claimed is: 
     
       1. A movable marking apparatus for marking a supporting surface comprising: a housing member; wheel means rotatably mounted to said housing member for engaging the supporting surface and rolling on the supporting surface; handle means secured to said housing for controlling said housing and pushing or pulling the housing along the supporting surface; rotating means rotatably mounted to said apparatus for indicating the speed of the apparatus, said rotating means having an outer surface and being driven by said wheel means, said rotating means including a first set of indicia disposed in spaced intervals on the outer surface, said first set of indicia appearing to be a solid line at a first, predetermined speed. 
     
     
       2. The movable marking apparatus of claim 1, wherein said rotating means includes a second set of indicia disposed in spaced intervals on the outer surface, said second set of indicia appearing to be a solid line at a second, predetermined speed. 
     
     
       3. The movable marking apparatus of claim 1, wherein said rotating means includes resilient means for engaging the wheel means. 
     
     
       4. An improved movable marking apparatus for marking a supporting surface, said apparatus having a housing member; wheel means rotatably mounted to said housing member for engaging the supporting surface and rolling on the supporting surface, said improvement comprising: rotating means rotatably mounted to said apparatus for indicating the speed of the apparatus, said rotating means having an outer surface and being driven by said wheel means, said rotating means including a first set of indicia disposed in spaced intervals on the outer surface, said first set of indicia appearing to be a solid line at a first, predetermined speed. 
     
     
       5. The movable marking apparatus of claim 4, wherein said rotating means includes a second set of indicia disposed in spaced intervals on the outer surface, said second set of indicia appearing to be a solid line at a second, predetermined speed. 
     
     
       6. The movable marking apparatus of claim 4, wherein said rotating means includes resilient means for engaging the wheel means. 
     
     
       7. A speed indicating assembly for a movable marking apparatus which marks a supporting surface and includes a housing and wheel means for moving the housing, said assembly comprising: rotating means rotatably mounted to said apparatus for indicating the speed of the apparatus, said rotating means having an outer surface and being driven by said wheel means, said rotating means including a first set of indicia disposed in spaced intervals on the outer surface, said first set of indicia appearing to be a solid line at a first, predetermined speed. 
     
     
       8. The movable marking apparatus of claim 7, wherein said rotating means includes a second set of indicia disposed in spaced intervals on the outer surface, said second set of indicia appearing to be a solid line at a second, predetermined speed. 
     
     
       9. The movable marking apparatus of claim 7, wherein said rotating means includes resilient means for engaging the wheel means.